Privacy Policy

1. Information We Collect

We collect information you provide directly to us, including:

• Account information (email, password)
• Reading history and book preferences
• Books you import from Goodreads or add manually
• Usage data and analytics
• Login security telemetry: timestamp, source (e.g. web), country and broad region (ISO 3166-2, no city), and browser user-agent at each sign-in. We do not store your IP address. These records are retained for 30 days for fraud and account-security purposes, then automatically deleted.
• Feedback you voluntarily submit through our in-product surveys (e.g. NPS score and free-text comments). Responses are tied to your account so we can follow up if needed and are used only to improve the product.

2. How We Use Your Information

We use the information we collect to:

• Provide personalized book recommendations
• Improve our AI recommendation algorithm
• Send you updates about your account and recommendations
• Analyze usage patterns to improve our service

3. Data Sharing

We do not sell your personal information. We may share your data with:

• Service providers who help us operate our platform
• AI providers (OpenAI, Anthropic) for generating recommendations
• Analytics providers (Google Analytics) to understand usage

4. Cookies and Tracking

We use cookies and similar tracking technologies to:

• Keep you signed in
• Understand how you use our service
• Show relevant advertisements (Google AdSense)
• Improve your experience

5. Your Rights

You have the right to:

• Access your personal data
• Request deletion of your account and data
• Opt out of marketing communications
• Export your reading history

6. Data Security

We implement appropriate security measures to protect your personal information. However, no method of transmission over the internet is 100% secure.

7. Children's Privacy

Our service is not intended for children under 13. We do not knowingly collect information from children under 13.

8. Changes to This Policy

We may update this privacy policy from time to time. We will notify you of any changes by posting the new policy on this page.

9. Contact Us

If you have questions about this privacy policy, please contact us at privacy@butterreads.com